Predictions of supersymmetric grand unified theories

Journal Article · Tue Jun 01 00:00:00 EDT 1982 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.25.3092· OSTI ID:5193432

Marciano, W J; Senjanovic, G

Renormalization effects are analyzed for a class of supersymmetric grand unified theories which contain the standard SU(3)/sub c/ x SU(2)/sub L/ x U(1) model. Predictions for sin/sup 2/theta-circumflex/sub W/(m/sub W/) and the proton lifetime are obtained as functions of ..lambda../sub M/S (MS is the modified minimal-subtraction scheme), N/sub H/ (number of relatively light Higgs doublets), and ..mu.. (the scale of supersymmetry breaking). For realistic input parameters we find 0.23< or =sin/sup 2/theta-circumflex/sub W/(m/sub W/)< or =0.26 and 10/sup 38/> or approx. =tau/sub p/> or approx. =10/sup 29/ yr. Loop effects that could render the larger predicted values of sin/sup 2/theta-circumflex/sub W/(m/sub W/) consistent with experiment are described.

• Research Organization: Physics Department, Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5193432
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 25:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645301* -- High Energy Physics-- Particle Invariance Principles &amp; Symmetries-- General-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LIE GROUPS
LIFETIME
MATHEMATICAL MODELS
NUCLEONS
PARTICLE MODELS
PROTONS
RENORMALIZATION
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SUPERSYMMETRY
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS